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Radek Sienkiewicz

Radek is a conversion rate expert. He helps businesses grow their revenue. He has worked with Amazon, Condé Nast, and many ecommerce businesses who are less flashy but no less exciting.

In addition to Nextommerce, his consultancy business, he runs the GrowRevenue.io newsletter, where you get a daily (Monday–Friday) email with a helpful conversion-related tip, strategy, or case study to grow your business.

Why Sites in High-Growth Industries Have Terrible UX

If you generate a $200 million quarterly profit with an online product, your website’s user experience must be world class, right? Wrong.

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What’s on my mind

Hi, I'm Peep Laja—founder of CXL. I'm a former champion of optimization and experimentation turned business builder.

I do a lot of thinking, reading, and writing around business, strategy, and optimization. I send a weekly newsletter with what's on my mind on this stuff.

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